Question: What are thedemographic profile which start with the letter teenager
Paraphrase: What are thedemographic profile which begin with the letter youngster
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q5932254 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'teenager')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: Teenagers, teenager